cliff." it calls for $2.2 trillion in savings over ten years, but no hike in tax rates. and the u.n. announced it's pulling nonessential international staffers from syria, while u.s. officials warned the syrian government not to use chemical weapons on its people. online, an update to a law in saudi arabia renews a debate about male guardianship. hari sreenivasan has more. >> sreenivasan: now whenever a saudi woman leaves the country, her husband or father receives a text message. the recent changes to the long- held system of male guardianship sparked outrage on twitter recently. i spoke to a journalist in saudi arabia who says the practice reinforces male control. our conversation is in the rundown. today's science roundup features dragonflies, or as one science writer calls them "the bengal tigers of the microworld." find the story on our home page. how can you secure a larger social security payment from an ex-spouse? the answer is in this week's installment of "ask larry." all that and m